class Phone(object):

    def __ring__(self):
        self.__call()

    def __call(self):
        print('打电话' + __name__)


phone = Phone()
phone.__ring__()


class Computer(object):
    def play_PC_Game(self):
        print('玩电脑游戏')


class MyPhone(Phone, Computer):
    pass


myPhone = MyPhone()
myPhone.__ring__()
myPhone.play_PC_Game()
